Question about 1994 Buick Century

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Battery drains must disconnect and reconnect the batery every day and every night where do i look for a common short

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  • yadayada
    yadayada May 11, 2010

    check for any light that may be on, glove box, visor vanity mirror, trunk light, this is the usual cause, check after dark.

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This is a very difficult task.

One way to narrow the possibilities is to connect and ammeter between the battery ground cable and the battery (disconnect the ground cable first).

Start pulling fuses until the current draw goes to zero. That will tell you which electrical subsystem is causing the drain.

Then you start probing that subsystem. A good possibility is a stuck relay.

It's not a short unless it's a resistive short. A short would have already taken care of the drain problem by blowing a fuse or burning up something.

Posted on Apr 21, 2009

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Very possible the trunk light is staying on

Posted on Apr 21, 2009

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